A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Measurement of the second-order coherence of pseudothermal light
Tekijät: Kuusela TA
Kustantaja: AMER ASSOC PHYSICS TEACHERS
Julkaisuvuosi: 2017
Journal: American Journal of Physics
Tietokannassa oleva lehden nimi: AMERICAN JOURNAL OF PHYSICS
Lehden akronyymi: AM J PHYS
Vuosikerta: 85
Numero: 4
Aloitussivu: 289
Lopetussivu: 294
Sivujen määrä: 6
ISSN: 0002-9505
eISSN: 1943-2909
DOI: https://doi.org/10.1119/1.4975212
Tiivistelmä
We describe photon statistics experiments using pseudothermal light that can be performed in an undergraduate physics laboratory. We examine the light properties in terms of a second-order coherence function, as determined either by measuring the light intensity as a function of time or via coincidence analysis of a pair of photon detectors. We determine the coherence time and intensity distribution of the pseudothermal light source that exhibits either Gaussian or non-Gaussian statistics as a function of their optical parameters, and then compare the results with theoretical predictions. The simple photodiode method can be used for the qualitative analysis of the coherence time, but more accurate measurements are achieved using the coincidence method. (C) 2017 American Association of Physics Teachers.
We describe photon statistics experiments using pseudothermal light that can be performed in an undergraduate physics laboratory. We examine the light properties in terms of a second-order coherence function, as determined either by measuring the light intensity as a function of time or via coincidence analysis of a pair of photon detectors. We determine the coherence time and intensity distribution of the pseudothermal light source that exhibits either Gaussian or non-Gaussian statistics as a function of their optical parameters, and then compare the results with theoretical predictions. The simple photodiode method can be used for the qualitative analysis of the coherence time, but more accurate measurements are achieved using the coincidence method. (C) 2017 American Association of Physics Teachers.
Turun yliopiston Tutkimustietojärjestelmän portaali